Takahashi 10mm 1.25" 90° Ultra Wide/Flat Field


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Free from coma and spherical aberrations, the medium to high power Takahashi 10mm Ultra Wide/Flat Field 1.25" eyepiece has pin point stars across its entire ultra-wide 90° apparent field of view . . .
Our Product #: TAKUW10
Takahashi Product #: TEA0100

Product Description

The Takahashi 10mm Ultra Wide/Flat Field 1.25" eyepiece is a new and original eight lens/five group optical design with an ultra-wide 90° apparent field of view. The field is exceptionally flat, with pin point stars across the entire 90° field. This aplanatic eyepiece is designed to be free from coma and spherical aberrations.

This 10mm Takahashi eyepiece was designed for medium to high power use with flat field telescopes. Such scopes include the Takahashi FSQ refractors, Takahashi Corrected Mewlons and Mewlons with separate MCR correctors, Takahashi FS-60Q and TOA refractors with field flatteners, and all other brands of flat field telescopes (whether the flat field is produced by a scope alone or a scope/field flattener combination).

This new design Takahashi eyepiece has a usable 12mm eye relief and a twist-up eyecup to shield your eye from stray light. Viewing with glasses is only necessary if there is astigmatism present in the observer's vision. Otherwise, the observer can view without glasses and still enjoy an ultra wide field of view.

All internal surfaces are painted with optical flat black paint to prevent ghost images and to insure the greatest possible contrast. A rubber grip ring around the barrel provides a sure grip in cold or damp weather.

The Takahashi 10mm Ultra Wide/Flat Field eyepiece is somewhat substantial in size and weight, although it compares favorably with similar eyepieces from other manufacturers. It has a 60mm maximum barrel diameter (2.36") and a 115mm length (4.5"), with a weight of 14.8 ounces.

Tech Details

Barrel Size 1.25"
Eye Relief 12mm
Field of view 90
Focal Length 10mm
Number of optical elements 8 lenses/5 groups
Weight 14.8 oz.
Warranty 5 years


Review by:
My cousin just purchased the TAK-10UW a couple weeks ago. We finally had some good conditions to put this eyepiece to work with his SKY-90. The Takahashi proved to be nearly free of aberration at the edge of the field and the image is incredibly flat throughout the field. This eyepiece just might be the nicest I have looked through. I wear glasses and I was able to discard them and have an excellent view experience! This is the one to buy for wide-field observation. (Posted on 9/9/2019)
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